I've got the abyssus with the 3.5G sensor. I have it set at 1800Dpi and 1000hz with the windows sens very low - about 1.5 - 2. In Quake I use sens 5 and accel 0.1 with m_pitch and m_yaw slightly lowered.
The thing is, the razer driver sensitivty slider only seems to stop at certain points of the sensitivity range dispite where you put it. i.e. it rounds its self up or down to a mile stone mark depending on where you place it on the slider. This is really annoying for me because the mile stone mark just below 1.5 is slightly too low and the next mile stone above is slightly too high. I want to keep my sens 5 and accel 0.1in Quakelive because I've used this ratio for a very long time now.
Anyone else have this problem? and is there a way around it?